164679677 has 2 divisors, whose sum is σ = 164679678. Its totient is φ = 164679676.

The previous prime is 164679667. The next prime is 164679703. The reversal of 164679677 is 776976461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162154756 + 2524921 = 12734^2 + 1589^2 .

It is a cyclic number.

It is not a de Polignac number, because 164679677 - 2²² = 160485373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164679667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82339838 + 82339839.

It is an arithmetic number, because the mean of its divisors is an integer number (82339839).

Almost surely, 2^164679677 is an apocalyptic number.

It is an amenable number.

164679677 is a deficient number, since it is larger than the sum of its proper divisors (1).

164679677 is an equidigital number, since it uses as much as digits as its factorization.

164679677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 53.

The square root of 164679677 is about 12832.7579654570. The cubic root of 164679677 is about 548.1254940628.

The spelling of 164679677 in words is "one hundred sixty-four million, six hundred seventy-nine thousand, six hundred seventy-seven".